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首页> 外文会议>IEEE International Electric Machines and Drives Conference;IEMDC '09 >Influence of non-linear loads on the operation and power flow of induction generators
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Influence of non-linear loads on the operation and power flow of induction generators

机译：非线性负载对感应发电机的运行和功率流的影响

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摘要

This paper considers the analysis and operation of an autonomous three-phase squirrel cage induction generator when it is feeding linear and non-linear loads. The nonlinear load comprises of a static voltage and frequency dependent component and a three-phase diode rectifier supplying a composite load containing constant power, constant current and constant resistance components. The dynamic model of the generator accounts for the effect of the main air-gap flux linkage saturation which with the excitation capacitors determines the steady-state operating points. Extensive simulation results are provided showing the starting transients and loading dynamics of the generator. The inducement of oscillations in the frequency and waveforms of generator variables due to the presence of the three-phase diode rectifier when the generator runs at a constant rotor speed are exemplified. The flows of the real and reactive powers with the rectifier load show that although the average active powers in capacitors and inductances are zero over the switching period of the three-phase diode rectifier, they are non-zero instantaneously and time-varying. Some experimental steady-state characteristics results obtained from an induction generator feeding a rectifier and an AC load are provided.
机译：本文考虑了自治三相鼠笼式感应发电机在馈入线性和非线性负载时的分析和运行。非线性负载包括静态电压和频率相关分量以及提供复合负载的三相二极管整流器，该复合负载包含恒定功率，恒定电流和恒定电阻分量。发电机的动力学模型考虑了主气隙磁链饱和度的影响，该饱和度与励磁电容器一起决定了稳态工作点。提供了广泛的仿真结果，显示了发电机的启动瞬态和负载动态。示例了当发电机以恒定转子速度运行时由于三相二极管整流器的存在而导致发电机变量的频率和波形中的振荡的诱发。整流器负载下的有功功率和无功功率的流向表明，尽管电容器和电感的平均有功功率在三相二极管整流器的开关周期内为零，但它们在瞬时且随时间变化为非零。提供了从感应发电机馈入整流器和交流负载获得的一些实验稳态特性结果。

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